I suggest you ...

Support Portable Class Libraries in VS 2013 for all platforms (including SL4 and WP7)

Visual Studio 2013 dropped tooling support for WP7 and SL4. That is fine, as for older projects, we can still use VS 2013.

A side-effect of that is that portable class libraries also no longer support WP7 or SL4. When you open PCLs that target those frameworks, they're upgraded to at least WP8 and SL5.

The problem is that in many projects, we need to still support libraries that target a wide range of devices. It's also likely that there's really no "uplevel" platform functionality needed by those libraries and there's no reason not to support the widest range.

PCL's VS 2013 should use any and all reference assemblies that are installed on the system; it shouldn't upgrade them.

Thanks for taking the time to share this suggestion. This item has been around for a couple of versions of Visual Studio and we haven’t acted on it. Looking at the VS “15” plans, we’re not going to take action on this item, so we’re going to close it. If the suggestion is still relevant, please either take a look to see if there’s another suggestion that’s similar that you can vote on, or open a new suggestion.

This issue is about supporting the full range of PCL metadata assemblies.

@Henrique: That blog post has nothing to do with this issue. This issue is just about getting VS2013 to use the PCL reference assemblies; that blog post is about copying the reference assemblies to other platforms (e.g., iOS/Linux).

@Mikael: That issue is not a duplicate of this one. This issue is about building PCLs. The other issue is about developing WP7.5 (etc.) projects with VS2013. That issue is quite complex for Microsoft to deliver; this one is trivially easy.